Ignition apparatus



May 20, 1930. H. E. NORWEL 1,759,461

IGNITION APPARATUS FiledvMaroh 25, 1926 Patented May 260, 1930 UNITEDSTATES PATENT OFFICE HARRY E. NORVIEL, F ANDERSON, INDIANA IGNITIONAPPARATUS Application led March 25, 1926. Serial No. 97,458.

011e of the objects of the present inven 6 6 of Fig. 3. Fig. 6 alsoincludes a. wirtion is to prevent the theft of an automotive ing diagramillustrating theuse of certain vehicle7 and this object is accomplishedac features shown in Fig. 6. cording to the present invention by a keyFig. 7 is a fragmentary sectional View on operated device which, whenmoved to lockline 7 T of Fig. 5. 55

ing position, will prevent the removal of the Referring to the drawings,20 designates engine ignition timer from the engine frame an engineframe which supports an engineand will render the ignition timerinopera* driven gear 2l meshing with a gear 22 drivtive by switchmechanism which is inaccesingly connected with an ignition timer canisible so long as the ignition timer remains shaft 23 supported by theshank 24 of a sup- 60 attached to the engine frame. In the disportingplate 25. The plate 25 supports an closed form of the invention theswitch ignition timer cup 26 having a central apermechanism is enclosedby a case, the 4Cover tui'e which receives an annular bearing ring ofwhich is provided by the ignition timer 27 provided by the plate 25. Thecup 26 is l5 housing. The switch case is attached to the rotatablerelative to the supporting plate 25 G5 engine frame by screws or thelike which which is xed to the engine frame by a set are inaccessible solong as the ignition timer screw 28 entering the recess in the shank 24is attached to the frame. Since the key operand secured in position bynut 29. The cup ated device may be moved to lock the ignition 26 isretained upon the plate 25 by means timer to the frame the switch casecan not which include studs 30 riveted to the bot- 70 be removed or itscontents disturbed. The tom of cup 26 and extending through slots switchmechanism provided by the present 3l of plate 25 and having threadedends 32 invention not only disconnects the timer from cooperating withnuts 33 which clamp dished the battery and ignition coil, but alsogrounds washers 34 against finished surfaces 35 pro the timer on theengine frame so that the vided by the plate 25. In this way the bot- 75timer can not be used with any other ignitom of cup 26 is yieldinglypressed by the tion coil which a thief may attempt to conspring 34against the plate 25. The cup 26 nect with the battery and the timer inorder cannot be removed from the plate 25 except to secure engineignition. Since the timer by removal of nuts/33 which are enclosed bycan not be removed from the engine frame the Switch gage to be describedso another timer can not be substituted. The cup 26 supports anon-insulated break- Further Objects and advantages 0f the preser lever40 having a metal hub 41 mounted ent invention will be apparent from thefol- 0n a metal pin 42 carried by the bottom 0f lowing description,reference being had t0 the cup 26. The breaker lever carries a rubtheCCOIIlpDyDg drawings, Whelem 3 PFG bing block 43 which co-operates witha cam 85 efled' 13011111 0f embOdlment 0f the present 44 drivinglyconnected with shaft 23. The

mventon 1S Clearly Shown' lever 40 carries a contact 45 which engages IQthe dmwmgs: a stationary contact 46 carried by a screw 40 Flgs and 2.taken tfgethr cqlstltute 47 which is adjustably supported by a brack-1Ong1tud ma1 spctlonal new o a lmerdmi et 48 which is insulatingly andadjustably that? @event-151m pparatu -Constpcte m supported by thebottom of the timer cup acgloale W1- ti e Ifre'sen lln 3 3 26. Thebracket 48 is attached to the cup 1t" 1S a Sec lona new 0 e by a screw49 and by a tubular rivet 50 which Ofpll's a sectional View on the line4 4 extends. through a slot 5l into plate 25 and 95 of Fig. 3. isprovided with a tubular recess 52 for re- Fig 5 is a plan View 0f theignition timer, ceiving a conducting brush 53 urged downthe ignitionhead and rotor being removed. wardly by a spring 54. A flexible conduc-Fig. 6 is a fragmentary view partly in tor 55 which extends through acentral bore 5 section, the section being taken on the line in the rivet50 and is soldered to the rivet 100 50 provides a good electricalconnection between the brush 53 and the rivet.

The cup 26 is turned by'a lever 60 attached thereto by a rivet 61 forthe purpose of advancing or retarding the spark; and the brush 53 bearsagainst a plate conductor 62 which is attached by rivets 63 and 64 tothe bottom of a switch case 65 andwhich is insulated from the switchcase. The conductor 62 is provided with two contact portions 66 and 67which are adapted to be engaged by a movable contact 68 mounted on anon-conducting plate 69. Contact 68 is adapted to engage a metal stud 70which is metalhcally connected at 71 to the switch case 65. Case 65 ismetallically connected with the engine frame 2O and is attached theretoby one or more screws 72. rl`he contact 68 is adapted to engage aconductor 73 which is attached to the bottom of the switch case 65 bythe studs 70 and a rivet 74. Conductor 73 insulated from the case 65 isconnected with a terminal. screw 75.

The non-conducting plate 69 which carries the contact 68 is attached toa slidable locking bolt which is received by a notch 81 in the shank 24.The bolt 80 is guided by a sleeve 82 which is permanently attached by ascrew pin 83 to a flanged collar 84 which is soldered or welded at 85 tothe switch case 65. The sleeve'82 includes a tubular extension 86 hichextends through a hole 87 in the case 65. A spring 88 is supported bythe extension 86 and bears at one end against the sleeve and at theother against the non-conducting plate 69.

The mechanism in operating the locking bolt 80 comprises a keycontrolled device including a pin tumbler cylinder lock barrel 90 whichreceives a key plug 91. As this type of lock is known to the trade asthe automobile type cylinder lock it is not illustrated in detail, butit will be understood that the turning of key plug 91 by a suitable keywill ,danse a pin 92 to be drawn within the cylinder 90. The cylinder 90is slidingly supported by a sleeve 93 which carries a pin94'eiitering aslot 95 in the side of thecylinder 90. In this way the cylinder isguided during its endwise movements relative to the sleeve 93. Sleeve 93is permanently attached by screw pin 96 to a case 97 having an outwardlyturned flange 98 and an inwardly turned i'iange 99. The flange 98 isattached by screws 100 to a suitable instrument board 101. The screws100 also secure in position a lface plate 102. The sleeve 93 includes apartition 103 separating recesses 104 and 105. Recess 104 receives aspring 106 bearing at one end against the wall 103 and at the other endagainst a disc 107 to which a. Bowden wire 108 is attached. The otherend of the Bowden wire is attached, as shown in Fig. 2, to the lockingbolt 80. When the key plug 91 is turned by a suitable key to withdrawthe bolt 92 from a hole 109 in the sleeve 93, the spring 106 will bereleased to cause the disc 107 and the cylinder 90 to slide toward theleft as viewed in Fig. 1. This motion of the disc 107 will cause theBowden wire 108 to pull the bolt 80 out of notch 81 and will cause thecontact 68 to engage the conductors 67 and 73. lVhen this occurs theinsulated timer contact 46 will be connected with the ignition coil andthe battery. The primary ignition circuit includes, as shown in Fig. 6,a'battery 120, grounded at 121, an ignition coil primary winding 123, a.wire 124, terminal screw 75, conductor 73, conductor 68, Contact 67,plate 62, brush 53, rivet 50, bracket 48, screw 47 and contact 46. Theignition circuit will be completed to ground through contact 48, lever40, hub 41, stud 42, timer cup 26 and plate 25, shank 24 and groundedengine frame 20. A leaf spring 40a, which urges the lever 40 in acounterclockwise direction in Fig. 5, also provides a part of the groundconnection of the contact 45.

The withdrawing of the locking bolt 80 from the notch 81 permits removalof the timer from the engine frame 20 after the nut 29 has been loosenedand the screw 28 has been withdrawn from the shank 24. The switch partswithin the case 26 are then accessible since the switch case coverprovided by the ignition timer cup 26 has been removed. Afterremoval ofthe ignition timer the nuts 32 may be removed so that ignition timer cup26 may be removed from the plate 25, if desired. After this is done thenut 42a which screws the timer breaker lever stud 42 in position may beremoved so that the breaker lever may be disassembled in order to grindthe fiat surface of the contact 45, if desired.

Vhen the cylinder 90 is moved into position shown in Fig. 1 a springwill be released to move the bolt into hole 109 provided by the sleeve93. l/Vhen this occurs the locking bolt 80 will be moved into position,shown and the switch contact 68 will connect the contact 66 with thecontact 70, as shown in Fig. 3. lVhen this occurs the insulated contact46 will be connected with ground through the following circuit: screw47, bracket 48, rivet 50, brush 53, plate 62, contact 66, contact 68 andgrounded stud 70. Since both of the contacts ot the timer are groundedthe timer can not function to cause the ignition coil to producesparking impulses. When the ignition timer is locked in position on theengine frame no other ignition timer can be substituted, norcan aninsulated breaker lever 40 be substituted for a grounded one in orderthat one of the timer contacts will be insulated. The locking of theignition timer to the engine frame also renders the ignition switchinaccessible sothat the ground connections can not be interferred with.The locked assembly of parts 65 and 26 Prevents access to the nuts 33which would permit rellO moval of the timer cup and contact members.Since the cup 26 can not be disassembled from the plate 25 the nut 42aholding the breaker lever l0 in position can not be removed.

The Bowden wire 108 extends through a Bowden wire tube 110. having oneend flared at one end over a partition 103 and the other end ilared at112 against a disc 118 which is received by a recess 114 in the sleeve82. The Bowden wire and case are enclosed by a flexible hard metalconduit 115 having one end received by the recess 114 and permanentlyattached to the sleeve 82 and having the other end permanently attachedto a sleeve 116. The sleeve 116 has a flange 117 which engages theflange 99 to prevent withdrawal of the sleeve. Moving of conduit 115sidewise will not affect the position of the Bowden wire 108 so that thebolt 80 might be withdrawn from the notch 81 by movement of conduit 115.If the conduit 115 is moved .sidewise in such a manner as to increaseits length the sleeve 116 will slide within the recess 105 towardthepartition 103.

While the form of embodiment of the present invention asherein-disclosed, constitutes a preferred form, it is to be understoodthat other forms might be adopted, all coming Within the scope of theclaims which follow. i

IVhat is claimed is as follows:

1. Ignition apparatus comprising, in combination, an ignition timer, aswitch having a case and devices within the case for rendering the timeroperative or non-operative, said ignition timer providing a cover forthe case; and key controlled means for locking the timer and switch casein assembled relation and for operating the switch so as to render thetimer non-operative.

2. Ignition apparatus comprising, in combination, a timer having onecontact insulated and the other grounded on the timer housing; a switchhaving a case closed by the timer housing and stationary contacts and amovable contact which, in one position7 connects the insulated timercontact with a switch terminal and which in another position7 connectsthe insulated timer contactl with ground; and key controlled means forlocking the timer and switch Case in assembled relation and forconnecting the insulated timer contact with ground.

Ignition apparatus comprising, in combination, an engine having a frameand an engine operated shaft; a timer having' a housing attached to theframe and a shaft supported by the housing and mechanically connectedwith the engine shaft; and key controlled means for grounding theignition circuit rendering the timer non-operative, and for preventingremoval of the timer from the engine frame.

4. Ignition apparatus comprising, in combination, an engine having aframe and an engine operated shaft; a timer having a housing attached tothe frame and a shaft supported by the housing and mechanicallyconnected with the engine shaft; a switch having a case attached to theframe by means accessible only within the switch case, and deviceswithin the case for rendering the timer operative or non-operative, Saidcase co-op'erating` with the timer housing to provide an enclosure forsaid switch devices and case attaching means; and key controlled meansfor locking the timer and switch case in assembled relation and foroperating the switch so as to render the timer non-opera tive.

5. Ignition apparatus comprising, in combination, an engine having aframe and an engine operated shaft; a timer having a housing attached tothe frame and a shaft supported by the housing and mechanicallyconnected with the engine shaft; a switch for connecting the timer witha current source; and key controlled means for locking the switch inopen position and for preventing removal of the timer from the engineframe.

6. Ignition apparatus comprising, in combination, an engine having aframe and an engine operated shaft; a timer having a housing attached tothe frame and a shaft supported by the housing and mechanicallyconnected with the engine shaft; a switch movable into one position forconnecting the timer with a current source and movable into anotherposition for connecting the timer with ground; and key controlled meansfor locking the switch in timer grounding position and for preventing.removal of the timer from the engine frame.

7. Ignition apparatus comprising, in combination, an ignition timerhaving a base and a shank extending therefrom and adapted to be receivedby a recess in an engine frame and having a timer drive shaft extendingthrough said shank; a switch for connecting the timer with a currentsource and having a cup-shaped case closed by the timer base7 the switchhaving a bottom wall apertured to receive said shank and attached totheengine frame by means accessible only within the switch case; and keycontrolled means for locking the switch in open position and for lockingthe timer base to the switch case.

8. Ignition apparatus comprising, in combination, an ignition switchhaving a case; means for attaching the case to the frame of an engine;an engine ignition timer adapted to preventaccess to said attachingmeans; and key controlled means for operating the switch and for lockingthe timer to the switch case. p

.9. Ignition apparatus comprising, in combination, an engine ignitiontimer adapted to be assembled with an engineframe; an ignition switchhaving a case covered by the timer and retained by the timer in assemblyCII with the frame while the timer is assembled with the frame, and keycontrolled means for operating the switch and for preventing removal ofthe timer from the engine frame. 5 10. In an anti-theft device forautomotive vehicles, a unitary control means, comprising, incombination, a timer having a housing supported by the engine iframe7 aswitch case surrounding the A,timer shatand located 10 between theengine frame and timer housing and covered by the housing and attachedto the frame by means accessible only Within the case, an insulatedterminal carried by the case for making connection with an ignitioncircuit; an insulated stationary switch contact within the case; meanshoused by the case for electrically connecting the insulated switchContact with the insulated timer contact; a switch Contact grounded onthe switch case; a movable contact within the case either for connectingthe terminal with the insulated switch contact, or for connecting theinsulated switch contact with the grounded switch contact; and keycontrolled means for locking the timer .housing to the switch case andfor connecting the movable contact with the insulated switch contact andwith the grounded switch contact. In testimony whereof I hereto alix mysi gnature.

HARRY E. NORVIEL.

